设有一个包含n个元素的有序线性表。在等概率情况下删除其中的一个元素，若采用顺序存储结构，则平均需要移动（ ）个元素；若采用单链表存储，则平均需要移动（ ）个元素。
问题1选项
A.1
B.(n-1)/2
C.logn
D.n
问题2选项
A.0
B.1
C.(n-1)/2
D.n/2
正确答案及解析
正确答案
解析
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